A Free-Sketch Recognition Method for Chemical Structural Formula

作者: Penghui Sun , Yan Chen , Xiaoqing Lyu , Bei Wang , Jingwei Qu

DOI: 10.1109/DAS.2018.28

关键词:

摘要: Chemical Structural Formula(CSF) recognition plays an important role in the molecular design and component retrieval. However, sketch-based CSF remains obstacle current retrieval systems. This paper introduces a system for sketch on smart mobile devices. A dual-mode-based method is proposed to distinguish gestures character inputs non-character instead of ordinary segmentation approaches. An attribute graph model established describe effectively all necessary information sketched CSF. knowledge adopted refine candidates structure relationship among elements. The experiments results demonstrate that outperforms existing methods free-sketch CSFs effectiveness flexibility.

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